GB/T 18132-2026Silk garments (English PDF)

4.1 Instructions for use

The instructions for use shall comply with GB/T 5296.4. Products for infants and young children and children shall also comply with GB 31701. Care instructions for infant products shall indicate “do not dry clean”.

4.2 Size specifications

4.2.1

Size specifications shall be set according to the requirements of GB/T 1335 (all parts).

4.2.2

The specification of the main parts shall be designed according to the relevant requirements of GB/T 1335 (all parts).

4.3 Raw materials

The shell and lining shall meet the relevant requirements of this standard. Fibres or fibre products that meet the requirements shall be selected in accordance with relevant standards. The accessories such as linings and sewing threads used shall be compatible with the shell. Buttons, decorative buttons, zippers and other accessories shall have smooth and clean surfaces, free from burrs, defects, damage, and shall have no accessible sharp points or sharp edges. Accessories on silk garments for infants shall not resemble food in appearance. Multi-component buttons that can be separated into individual parts should not be used, except for jeans buttons. Zippers shall engage and operate smoothly.

4.4 Warp and weft yarn directions

4.4.1

The skewness of the yarn direction of the collar, back and sleeves shall not exceed 3 %, and the front hem shall not curl upward.

4.4.2

The skewness of the weft yarn direction of trousers and skirts shall not exceed 3 %, and that of the warp yarn direction shall not exceed 1.5 %.

4.5 Matching of stripes and plaids

4.5.1

Obvious strips or plaids of 1.0cm or above on fabric shall comply with those specified in Table 1. Except for special design.

Table 1 Requirements of strip and plaid matching

Dimensions in centimetre

Part Requirements for strip and plaid matching Remarks

Left and right fronts Stripes shall be straight, and plaids shall be horizontally aligned, with a tolerance not exceeding 0.4. If the sizes of strip and plaid are different, the upper half part of the clothes length shall be taken as the primary reference.

Pocket and front Stripes shall be aligned with stripes, and plaids with plaids, with a tolerance not exceeding 0.4. For bias-cut patch pockets, the left and right shall be symmetrical, with a tolerance not exceeding 0.5. (Except for directional stripe and plaid patterns) When stripes or plaids are of different sizes, the front part of the pocket shall be taken as the primary reference.

Collar point and lapel Stripes and plaids shall be symmetrical, with a tolerance not exceeding 0.2. For fabrics with directional stripes or plaids, the more prominent stripe or plaid shall be taken as the primary reference.

Sleeves Stripes shall be straight, and plaids shall be horizontally aligned, with the sleeve cap as the reference point. The two sleeves shall be symmetrical with a tolerance not exceeding 1.0

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Back centre seam and centre back seam of skirt Stripes shall be aligned with stripes, and plaids shall be horizontally aligned, with a tolerance not exceeding 0.3 -

Side seam Plaids shall be aligned with each other horizontally at 10 below the armhole, with a tolerance not exceeding 0.4 -

Side seam of trousers and skirt Plaids below the knee line shall be aligned with each other horizontally, with a tolerance not exceeding 0.4 Apparent strips and plaids shall be taken as the primary reference.

Front center seam of trousers and skirt Stripes shall be straight, with a skewness not exceeding 1.0 - 4.5.2 The skewness of striped or plaid patterns shall not exceed 3 %.

4.5.3

For fabric with directional nap or pile, and for fabrics with contrasting/check patterns, the direction shall be consistent throughout the whole garment, except for special design.

4.5.4

For fabric with special patterns, the main pattern shall be taken as the reference, and the direction shall be consistent throughout the garment.

4.6 Colour difference

4.6.1

The colour difference of fabrics on various parts shall be not lower than Grade 4. The colour difference of fabric and that caused by fusible interlining shall not be lower than Grade 3-4, except for special design.

4.6.2

The colour difference between tops and bottoms of suits shall not be lower than Grade 4.

4.7 Appearance defects

The permissible limits of defects on each part of the finished product shall be as specified in Table 2. See Figure 1 for division of parts of finished product. The degree of surface defects shall comply with GSB 16-2179-2008. Only one defect within the permissible extent is allowed on each part. For defects not listed in this document, the provisions for similar defects in Table 2 shall be applied by reference according to their morphology.

Table 2 Requirements for appearance defects

Dimensions in centimetre

Defect Degree Permissible limit

Part No. 1 Part No. 2 Part No. 3

Linear defect Ordinary Not allowed <=2.0 <=3.0

Visible Not allowed Not allowed <=2.0

Slub streaks Ordinary Not allowed One is allowed Two are allowed

Visible Not allowed Not allowed One is allowed

Patchy weaving defect Ordinary Not allowed <=0.5 <=1.0

Visible Not allowed Not allowed <=0.5

Weft bar Ordinary Not allowed One is allowed Two are allowed

Visible Not allowed Not allowed Not allowed

Crease mark a Ordinary Not allowed <=5.0 <=10.0

Visible Not allowed Not allowed <=5.0

Oil, rust or color spot Ordinary Not allowed <=0.2 <=0.3

Visible Not allowed Not allowed Not allowed

Note: The permissible value for defects in this table refers to total size of similar defects on the same product.

a Dead crease marks that cannot be ironed out shall be assessed as conspicuous crease marks.

Figure 1 Schematic diagram of the division of parts of the finished product […]